<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="../CSS/day3/demo3.css" />
  </head>
  <body>
    <!-- 最外层 -->
    <div class="container">
      <!-- 头部 -->
      <div class="header">
        <div class="nav">
          <div class="nav_left"></div>
          <div class="nav_right"></div>
        </div>
        <div class="nav_down">
          <div></div>
          <div></div>
          <div></div>
        </div>
        <div class="main"></div>
        <div class="main_down">
          <div></div>
          <div></div>
          <div></div>
        </div>
      </div>
      <!-- 主体 -->
      <div class="content">
        <div class="wrap">
          <div></div>
          <div></div>
        </div>
      </div>
      <!-- 栏目 -->
      <div class="column">
        <div class="column_up">
          <div></div>
          <div></div>
        </div>
        <div class="column_down">
          <div></div>
          <div></div>
          <div></div>
          <div></div>
        </div>
      </div>
      <!-- 页尾 -->
      <div class="footer"></div>
      <img src="../img/images/图块页面_02.jpg" />
    </div>
  </body>
</html>
